Lyn, we all have to find what works for us. And if what at one time stops working for us, then it's usually time to change it. FOR ME, the ONLY thing that worked
consistiently is actually counting my calories. It's the ONLY thing that helps to keep my portions in check. If I'm not actually tallying them up, then there's no way to know for sure just how many I'm getting and therefore I could be eating more then will get me that all important deficit. As far as it being too much work for me, well I hate doing the laundry, washing the floors and paying the bills - but it must get done. IMO, counting calories is the only brutally honest way to be held accountable and whatever time I spend on it is more then well worth it. But of course that if for you to decide.
As far as having that carb with your coffee, that's could be a factor. I find carbs eaten by themselves are a "diet" disaster. For me, when I do have a carb, it's always with a protein.
When you say it's been a couple of weeks that you haven't lost weight, is it really only 2 weeks, cause again, that's not all that long. If its much more then that, and if you want to keep on losing weight, you're going to have to make some decisions here. Whether it be about the coffee/creamer and carb habit or stricter monitoring of your caloric intake (you'd be shocked at how those sneaky little calories can add up) or adding in more veggies and whole grains. You've got to be brutally honest and face facts that something just may have to change.
As far as the exercise goes, how about swimming or an elliptical? Both low impact on the knees. There are also specific exercises that can help strengthen the surrounding muscles in the knees. Have you thought of going to a physical therapist? They may be able to help you further.
With a little tweaking, a little experimentation and some patience you most cetainly can get back to losing once again - and shortly. Good luck.
